﻿using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using FileManager_Server.BusinessLogic.IRepository_Service;
using FileManager_Server.BusinessLogic.WCF.ObjectContainer_Setting;
using FileManager_Server.BusinessLogic.WCF.System_Setting_Service;
using FileManager_Server.Utility;

namespace FileManager_Server.PresentationLayer
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            try
            {
                //Application.EnableVisualStyles();
                //Application.SetCompatibleTextRenderingDefault(false);
                //Application.Run(new Form1());
                foreach (var item in args)
                {
                    //MessageBox.Show(item);
                }
                //Get   the   running   instance.     
                Process instance = RunningInstance();
                if (instance == null)
                {
                    Application.EnableVisualStyles();   //这两行实现   XP   可视风格     
                    Application.DoEvents();
                    //There   isn't   another   instance,   show   our   form.     
                    Application.Run(new MainForm());
                }
                else
                {
                    MessageBox.Show(GlobalString.System_Config_String.InstanceHasRun);
                    //There   is   another   instance   of   this   process.     
                    HandleRunningInstance(instance);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("异常信息:" + ex.Message);
            }

        }

        public static Process RunningInstance()
        {
            Process current = Process.GetCurrentProcess();
            Process[] processes = Process.GetProcessesByName(current.ProcessName);
            //Loop   through   the   running   processes   in   with   the   same   name     
            foreach (Process process in processes)
            {
                //Ignore   the   current   process     
                if (process.Id != current.Id)
                {
                    //Make   sure   that   the   process   is   running   from   the   exe   file.     
                    if (Assembly.GetExecutingAssembly().Location.Replace("/", "//") == current.MainModule.FileName)
                    {
                        //Return   the   other   process   instance.     
                        return process;
                    }
                }
            }
            //No   other   instance   was   found,   return   null.   
            return null;
        }

        public static void HandleRunningInstance(Process instance)
        {
            //Make   sure   the   window   is   not   minimized   or   maximized     
            ShowWindowAsync(instance.MainWindowHandle, WS_SHOWNORMAL);
            //Set   the   real   intance   to   foreground   window  
            SetForegroundWindow(instance.MainWindowHandle);
        }


        [DllImport("User32.dll")]
        private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);
        [DllImport("User32.dll")]
        private static extern bool SetForegroundWindow(IntPtr hWnd);
        private const int WS_SHOWNORMAL = 1;  
    }
}
